(19)

(11)

EP 2 399 149 A1

(12)

(43) Date of publication: 28.12.2011 Bulletin 2011/52 (21) Application number: 10707352.0 (22) Date of filing: 16.02.2010

(51) International Patent Classification (IPC):  G01S 7/52(2006.01) G10K 11/30(2006.01) G01S 15/89(2006.01) (86) International application number: PCT/IB2010/050690 (87) International publication number: WO 2010/095094 (26.08.2010 Gazette 2010/34)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 20.02.2009 US 154140 P (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventors: BURCHER, Michael, R. NL-5656 AE Eindhoven (NL) SHI, Yan, S. NL-5656 AE Eindhoven (NL) ROBERT, Jean-luc NL-5656 AE Eindhoven (NL) (74) Representative: Van Velzen, Maaike Mathilde  Philips Intellectual Property & Standards P.O. Box 220 5600 AE Eindhoven 5600 AE Eindhoven (NL)